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The patent EP2496766 was granted to Stora Enso OYJ on May 15, 2024. The application was filed on Nov 4, 2010 under application number EP10828623A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| BILLERUDKORSNAS | May 2, 2018 | KRANSELL & WENNBORG KB | ADMISSIBLE |
| KEMIRA OYJ | May 2, 2018 | PAGE WHITE FARRER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2005096845 |
| INTERNATIONAL-SEARCH-REPORT | US5964983 |
| INTERNATIONAL-SEARCH-REPORT | WO2004055267 |
| INTERNATIONAL-SEARCH-REPORT | WO2008076056 |
| OPPOSITION | JP2005096845 |
| OPPOSITION | SE0950534 |
| OPPOSITION | US4452722 |
| OPPOSITION | US5964983 |
| OPPOSITION | WO2004055267 |
| OPPOSITION | WO2008008576 |
| OPPOSITION | WO2008076056 |
| OPPOSITION | WO2009123560 |
| OTHER | WO2008008576 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
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Apr 18, 2024
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Jan 16, 2023
Refund of fees
Appeal
Jan 16, 2023
Refund of fees
Appeal
Jan 12, 2023
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Jan 11, 2023
Jan 11, 2023
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Jan 5, 2023
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Jan 5, 2023
Jan 4, 2023
(Electronic) Receipt
Appeal
Jan 4, 2023
(Electronic) Receipt
Appeal
Jan 4, 2023
Jan 4, 2023
Jan 4, 2023
Withdrawal of an appeal
Appeal
Jan 4, 2023
Withdrawal of an appeal
Appeal
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
Mar 21, 2022
Mar 21, 2022
Mar 16, 2022
(Electronic) Receipt
Appeal
Mar 16, 2022
Mar 16, 2022
Mar 14, 2022
Mar 14, 2022
Mar 14, 2022
Mar 14, 2022
Mar 9, 2022
Oct 29, 2021
Jun 29, 2020
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Jun 29, 2020
Reply to appeal
Appeal
Jun 24, 2020
Jun 24, 2020
Jun 24, 2020
Reply to appeal
Appeal
Mar 26, 2020
Mar 26, 2020
Mar 26, 2020
Mar 20, 2020
(Electronic) Receipt
Appeal
Mar 20, 2020
(Electronic) Receipt
Appeal
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Feb 27, 2020
Feb 27, 2020
Feb 27, 2020
Feb 21, 2020
Jan 24, 2020
Jan 23, 2020
Jan 21, 2020
(Electronic) Receipt
Appeal
Jan 21, 2020
Jan 21, 2020
Notice of appeal
Appeal
Jan 17, 2020
(Electronic) Receipt
Appeal
Jan 17, 2020
Jan 17, 2020
Notice of appeal
Appeal
Nov 22, 2019
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Means of redress
OPPO
Nov 12, 2019
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Aug 2, 2017
Jul 31, 2017
Jul 21, 2017
Jul 6, 2017
Decision to grant a European patent
Search/Exam
Jun 23, 2017
Filing of the translations of the claims
Search/Exam
Jun 23, 2017
French translation of claims
Search/Exam
Jun 23, 2017
German translation of the claims
Search/Exam
Jun 21, 2017
Filing of the translations of the claims
Search/Exam
Jun 21, 2017
French translation of claims
Search/Exam
Jun 21, 2017
German translation of the claims
Search/Exam
Feb 23, 2017
Feb 23, 2017
Feb 23, 2017
Intention to grant (signatures)
Search/Exam
Feb 23, 2017
Text intended for grant (clean copy)
Search/Exam
Feb 23, 2017
Nov 11, 2016
Nov 7, 2016
Jul 25, 2016
Annex to the communication
Search/Exam
Jul 25, 2016
Communication from the Examining Division
Search/Exam
Jun 27, 2016
Jun 27, 2016
Jun 20, 2016
(Electronic) Receipt
Search/Exam
Jun 20, 2016
Citation filed by a third party
Search/Exam
Jun 20, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 20, 2016
Observations by third parties
Search/Exam
Jun 14, 2016
Amended description with annotations
Search/Exam
Jun 14, 2016
Description
Search/Exam
Jun 14, 2016
Jun 9, 2016
Amended description with annotations
Search/Exam
Jun 9, 2016
Description
Search/Exam
Jun 9, 2016
Apr 8, 2016
Annex to the communication
Search/Exam
Apr 8, 2016
Communication from the Examining Division
Search/Exam
Feb 25, 2016
Amended claims with annotations
Search/Exam
Feb 25, 2016
Claims
Search/Exam
Feb 25, 2016
Feb 22, 2016
Amended claims with annotations
Search/Exam
Feb 22, 2016
Claims
Search/Exam
Feb 22, 2016
Oct 12, 2015
Annex to a communication
Search/Exam
Oct 12, 2015
Annex to the communication
Search/Exam
Oct 12, 2015
Communication from the Examining Division
Search/Exam
Sep 25, 2015
Examination started
Search/Exam
Jun 15, 2015
Jun 15, 2015
May 26, 2015
(Electronic) Receipt
Search/Exam
May 26, 2015
Letter accompanying subsequently filed items
Search/Exam
May 26, 2015
Non-patent literature filed by a third party
Search/Exam
May 26, 2015
Non-patent literature filed by a third party
Search/Exam
May 26, 2015
Non-patent literature filed by a third party
Search/Exam
May 26, 2015
Non-patent literature filed by a third party
Search/Exam
May 26, 2015
Observations by third parties
Search/Exam
May 5, 2015
May 5, 2015
Amended claims with annotations
Search/Exam
May 5, 2015
Amendments received before examination
Search/Exam
Apr 29, 2015
Apr 29, 2015
Amended claims with annotations
Search/Exam
Apr 29, 2015
Amendments received before examination
Search/Exam
Oct 24, 2014
Oct 7, 2014
Oct 7, 2014
European search opinion
Search/Exam
Oct 7, 2014
Supplementary European search report
Search/Exam
Dec 6, 2013
Search started
Search/Exam
Aug 16, 2012
Jul 4, 2012
May 24, 2012
May 14, 2012
(Electronic) Receipt
Search/Exam
May 14, 2012
Request for entry into the European phase
Search/Exam
Mar 16, 2012
Information on entry into European phase
Search/Exam
Jun 6, 2011
May 12, 2011
Copy of the international search report
Search/Exam
May 12, 2011
Published international application - A1
Search/Exam